She had （）suffering from a bad cold when she took the exam.
A.
was
B.
be
C.
been
D.
were
正确答案是C
She had （）suffering from a bad cold when she took the exam.
She had （）suffering from a bad cold when she took the exam.
A.
was
B.
be
C.
been
D.
were
正确答案是C